

It's currently taking the form of Ragna the Bloodedge's right arm. It is also called the 'original codex.' While it's called a Grimoire, it's actually a high density mass of compressed Seithr similar to the 'Black Beast,' and has no definite shape. It is said to be the 'strongest' Grimoire. Official Descriptions BlazBlue: Central Fiction Library Entry Azure Grimoire

There are two different activation calls Ragna uses in Continuum Shift. Dimensional interruption imaginary number formed. Ragna calls for the power of the Azure Grimoire as a last ditch effort to defeat Hakumen after being interrupted by Kokonoe. Ragna has had many different calls for activating the Azure Grimoire in the series, the most common ones being: According to Relius Clover, the Azure Grimoire also has a piece of the Azure, allowing it to be capable of killing cauldrons. Some believe that it can do practically anything, such as helping turn Nox Nyctores' into humans, or being able to reverse the effects of the Boundary on the human body. Rachel Alucard gifted the Azure Grimoire to Ragna to stop him from dying from a wound caused by Jin Kisaragi and Terumi. Late in 2200, Ragna's overuse of the Azure Grimoire heavily corrupted his right half and drastically shortened his lifespan. Kokonoe has argued that the Azure Grimoire is incomplete, and that it is also the weakest Grimoire because of its overwhelming weakness - it eats its user's soul. Nine the Phantom begun development on the Burning Red Grimoire, which was to be paired with the Azure Grimoire, but it was never completed in her lifetime. To prevent the seithr from the cauldron corrupting him, Ragna has to wear two seithr regulators. It can also grant its wielder the ability to use Ars Magus, regardless of their aptitude. Another of its powers is to grant its wielder the Soul Eater Drive, which generates an aura that gradually drains the souls of others into the Grimoire an additional part of this power is that it can steal the wishes of the chosen. However, if the fusion is perfect, or done with a piece of the Azure, then a Kusanagi is made, which is the perfect Prime Field Device. If combined with a Boundary Interface Prime Field Device, it can become a Black Beast - this happens when the fusion goes out of control. This Grimoire is unique because of its ability to directly contact the Boundary, and is essentially a cauldron in its own right.

It is functionally similar to the Blue Grimoire. Regardless of its shape, the Grimoire has always been seen as pure black - it can also change its wielder's eye color to red. The Azure Grimoire has no real shape it changes shape for its user, and has taken on the appearance of a headless mannequin and Ragna's right arm. The basis for the Azure Grimoire was created by Yuuki Terumi from the corpse of the Black Beast.
